Which words describe this shape? mark all that apply. a polygon(b) open shapepentagond quadrilateral

It is a polygon a quadrilateral has 4 sides and a open shape doesn't close so it is a polygon

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.